section
  h3(id='res.send') res.send([body|status], [body])
  
  p.
    Send a response.

  +js.
    res.send(new Buffer('whoop'));
    res.send({ some: 'json' });
    res.send('<p>some html</p>');
    res.send(404, 'Sorry, we cannot find that!');
    res.send(500, { error: 'something blew up' });
    res.send(200);

  p.
    This method performs a myriad of
    useful tasks for simple non-streaming responses such
    as automatically assigning the Content-Length unless
    previously defined and providing automatic <em>HEAD</em> and
    HTTP cache freshness support.

  p.
    When a <code>Buffer</code> is given
    the Content-Type is set to "application/octet-stream"
    unless previously defined as shown below:

  +js.
    res.set('Content-Type', 'text/html');
    res.send(new Buffer('<p>some html</p>'));

  p.
    When a <code>String</code> is given the
    Content-Type is set defaulted to "text/html":

  +js.
    res.send('<p>some html</p>');

  p.
    When an <code>Array</code> or <code>Object</code> is
    given Express will respond with the JSON representation:

  +js.
    res.send({ user: 'tobi' })
    res.send([1,2,3])

  p.
    Finally when a <code>Number</code> is given without
    any of the previously mentioned bodies, then a response
    body string is assigned for you. For example 200 will
    respond will the text "OK", and 404 "Not Found" and so on.

  +js.
    res.send(200)
    res.send(404)
    res.send(500)
